Marvin Pierce Bush (born October 22, 1956) is the youngest son of U.S. President George H. W. Bush and Barbara Pierce, and brother of President George W. Bush, John (Jeb), Neil and Dorothy. He and wife Margaret Conway (née Molster) have two children who were adopted from the Gladney Center in Ft. Worth, Texas: a daughter, Marshall, and a son, Walker.
Marvin P. Bush, the president’s younger brother, was a principal in a company called 'Securacom' . Securacom provided security for the World Trade Center, United Airlines, and Dulles International Airport. The company was backed by KuwAm, a Kuwaiti-American investment firm, on whose board Marvin Bush also served. [Utne]